LinkitONE Sound Equalizer

Do you want to do something fun with your hardware? like to play music? then lets make a diy sound equalizer? Then lets get started!

Here I’ll show you how you can make a diy equalizer with a sound sensor and a LinkitONE!

Supplies:

Step 1: What Do You Need?

1) LinkitONE Board

2) Sound sensor (Any would work)

3) micro-USB cable (for programming)

4) battery pack

5) Grove LED bar

Step 2: Working With Grove LED Bar

In this step we’ll make all the connections.

We’ll use 4 pins for the LED bar. Bar to LinkitONE connections:

VCC – 5V

GND – GND

DATA PIN (white) – 8

CLOCK PIN (yellow) – 9

Connect all these pins as shown in the figure. Then move on to the next step.

Step 3: Attaching the Sensor

Here we’ll attach the sound sensor with the LinkitONE.

Sound Sensor to LinkitONE connections:

VCC – 5V

GND – GND

DATA – A1

Connect the pins as shown in the image of step.

Once this is done, move on the next step of writing some code.

Step 4: Writing Some Code

The code is really simple in this project, we just need to take analog readings from our sensors, which is the intensity of the sound and then we need to present on a bar level using the grove LED bar.

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6 Discussions

This is a bargraph or VU meter, not an equalizer. An equalizer permits to increase or decrease levels of predetermined frequencies. If the frequencies are adjustable, it's called a parametric equalizer.